added DibiDriver::disconnect()

examples/extension.method.php

@@ -0,0 +1,27 @@
+<h1>dibi extension method example</h1>
+<pre>
+<?php
+
+require_once '../dibi/dibi.php';
+
+
+dibi::connect(array(
+    'driver'   => 'sqlite',
+    'database' => 'sample.sdb',
+));
+
+
+
+// using the "prototype" to add custom method to class DibiResult
+function DibiResult_prototype_fetchShuffle(DibiResult $obj)
+{
+    $all = $obj->fetchAll();
+    shuffle($all);
+    return $all;
+}
+
+
+// fetch complete result set shuffled
+$res = dibi::query('SELECT * FROM [customers]');
+$all = $res->fetchShuffle();
+print_r($all);